The Simulation Of The Methanol-to-propylene Process

In recent years, world consumption of propylene increased substantially, however a large gap is still in the market supply and demand, in spite of the fact that propylene production capacity growth rate is higher than the growth rate of demand. In this paper, the research progress of the methanol-to-olefins, the classification and development of the catalyst and the latest improvement of catalyst are introduced under this background. Paper elaborated the reaction mechanism of methanol-to-olefins and industrial achievements of the methanol-to-propylene process.This paper analyzed the methanol-to-propylene thermodynamic and reaction mechanism of methanol and C4-C6.The sections of methanol-to-propylene reaction, cooling&separation, compressing&drying and separation were simulated in this paper. Based on those section simulations, a methanol-to-propylene production process flow simulation was established. Comparing of simulation results with actual data analysis, simulation results were verified to be accurate and reliable. According to simulation results, the deficiencies and recommendations were pointed out. The whole process simulations provide the support for the methanol-to-propylene process improvement and technology development.